DisplayCheck
A new screen can look perfect at first glance, yet reveal a stuck pixel, uneven backlight, color banding, or motion trails once you know what to look for. DisplayCheck makes those checks easy to run in your browser, without an account, download, or special setup.
Choose from 19 focused tests covering dead pixels, OLED image retention, screen uniformity, backlight bleed, gradients, black and white levels, color handling, refresh cadence, ghosting, HDR browser support, and touch input. Each test explains how to prepare, what to observe, and what might affect the result. If you are unsure where to start, a guided five-step screen check walks you through the essentials.
DisplayCheck is useful when inspecting a new or secondhand monitor, comparing display settings, checking an OLED screen for visible retention, or helping someone troubleshoot a screen remotely. Fullscreen patterns keep the test area clear of distractions, and the tests can continue in the browser window if fullscreen is unavailable. Your check progress and observations stay in your browser by default.
What sets DisplayCheck apart is its emphasis on useful, honest results. It helps you see and compare possible issues while explaining the limits of a browser test. For example, its refresh-rate tool estimates the animation cadence observed by the browser; it does not claim to measure the panel directly. Objective color accuracy, brightness, and physical response time require dedicated instruments.
Whether you are a buyer, gamer, creator, technician, or simply curious about your display, DisplayCheck offers a free, approachable place to start.
